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Key Documents

C5679

Sigma-Aldrich

Casein from bovine milk

BioReagent, suitable for insect cell culture

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About This Item

CAS Number:
EC Number:
MDL number:
UNSPSC Code:
12352202
NACRES:
NA.75

biological source

bovine milk

product line

BioReagent

form

powder

technique(s)

cell culture | insect: suitable

mp

280 °C (dec.) (lit.)

UniProt accession no.

InChI

1S/C81H125N22O39P/c1-36(2)31-50(76(132)94-43(15-24-57(87)108)71(127)101-52(34-64(120)121)78(134)98-49(81(137)138)11-7-8-30-82)99-72(128)47(19-28-61(114)115)95-77(133)51(33-63(118)119)100-73(129)48(20-29-62(116)117)97-80(136)65(37(3)104)103-75(131)44(16-25-58(88)109)92-68(124)42(14-23-56(86)107)90-67(123)41(13-22-55(85)106)91-69(125)45(17-26-59(110)111)93-70(126)46(18-27-60(112)113)96-79(135)53(35-142-143(139,140)141)102-74(130)40(12-21-54(84)105)89-66(122)39(83)32-38-9-5-4-6-10-38/h4-6,9-10,36-37,39-53,65,104H,7-8,11-35,82-83H2,1-3H3,(H2,84,105)(H2,85,106)(H2,86,107)(H2,87,108)(H2,88,109)(H,89,122)(H,90,123)(H,91,125)(H,92,124)(H,93,126)(H,94,132)(H,95,133)(H,96,135)(H,97,136)(H,98,134)(H,99,128)(H,100,129)(H,101,127)(H,102,130)(H,103,131)(H,110,111)(H,112,113)(H,114,115)(H,116,117)(H,118,119)(H,120,121)(H,137,138)(H2,139,140,141)

InChI key

BECPQYXYKAMYBN-UHFFFAOYSA-N

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General description

Casein is a calcium phosphate-binding phosphoprotein present in mammalian milk. It constitutes about 80% of the total bovine milk. Bovine milk is made of four types of casein such as, αs1-, αs2-, β-, and κ-caseins.

Application

Casein from bovine milk has been used as a component of normal medium for Drosophila culture , in the preparation of αS1-casein (CAS1_Bovin) , as a source of nitrogen (N) in experiment diets .

Biochem/physiol Actions

Partial gastrointestinal digestion of casein is a rich source of bioactive peptides, such as β-casomorphin. However, bovine casein is not homogeneous; variants A1 and B do lead to production of β-casomorphin 7 production, while A2 does not.
Numerous experimental applications including use as a blocking agent in immunochemistry, recovery of enzyme activity from SDS extracted samples, and as a substrate for protease and kinase assays.

Quality

essentially vitamin free

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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S Elsayed et al.
Molecular immunology, 41(12), 1225-1234 (2004-10-16)
T cell recognition patterns of CAS1_Bovin, its limited hydrolysis, oxidized, reduced/alkylated, cyanogen bromide cleavage fractions and synthetic peptides were examined. Thirteen overlapping peptides covering the intact molecule, with chain lengths varied between 17 and 20 AA, were prepared by f-moc
The effects of rumen nitrogen balance on in vitro rumen fermentation and microbial protein synthesis vary with dietary carbohydrate and nitrogen sources
Kand D, et al.
Anim. Feed Sci. Technol., 241(12) (2018)
Casein and Peptides Derived from Casein as Antileukaemic Agents
Ledesma M E, et al.
Journal of Oncology, 2019(4), 71-71 (2019)
T cell recognition pattern of bovine milk alphaS1-casein and its peptides
Elsayed S, et al.
Molecular Immunology, 41(12) (2004)
Edgar Ledesma-Martínez et al.
Journal of oncology, 2019, 8150967-8150967 (2019-10-05)
Milk is a heterogeneous lacteal secretion mixture of numerous components that exhibit a wide variety of chemical and functional activities. Casein, the main protein in milk, is composed of α-, β-, and κ-caseins, each of which is important for nutritional

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